Ma modulators amakono a LED omwe amagwiritsidwa ntchito kwambiri mu optics

Ma modulators amakono a LED omwe amagwiritsidwa ntchito kwambiri mu optics

Mfundo yakusintha kwa kuwalasizovuta. Makamaka zimakwaniritsa kusintha kwa amplitude, phase, polarization, refractive index, absorption rate ndi makhalidwe ena a kuwala kudzera mu zolimbikitsa zakunja, kuti ziwongolere bwino chizindikiro cha kuwala, monga kulola ma photon kunyamula ndikutumiza chidziwitso. Zigawo zoyambira za commonmodulator yamagetsiZikuphatikizapo magawo atatu: makhiristo a electro-optic, ma electrode, ndi zinthu zowala. Panthawi yosintha kuwala, zinthu zomwe zili mu optical modulator zimasintha refractive index yake, kuchuluka kwa kuyamwa ndi zinthu zina mothandizidwa ndi zinthu zakunja (monga magetsi, mawu, kusintha kwa kutentha kapena mphamvu zamakaniko), motero zimakhudza machitidwe a ma photon pamene akudutsa muzinthuzo, monga kuwongolera mawonekedwe ofalikira a kuwala (amplitude, phase, polarization, ndi zina zotero). Kristalo ya electro-optical ndiye maziko amodulator yowala, yomwe imayang'anira kusintha kwa magetsi ndikusintha refractive index yake. Ma electrode amagwiritsidwa ntchito poyika magetsi, pomwe zinthu zowunikira monga ma polarizer ndi ma waveplate zimagwiritsidwa ntchito kutsogolera ndikuwunika ma photon omwe amadutsa mu kristalo.

Kugwiritsa Ntchito Frontier mu Optics

1. Kuwonetsera kwa Holographic ndi ukadaulo wowonetsera

Mu holographic projection, kugwiritsa ntchito ma spatial optical modulators kuti asinthe bwino mafunde a kuwala omwe akuchitika kungathandize mafunde a kuwala kusokoneza ndikusokoneza mwanjira inayake, ndikupanga kugawa kwa kuwala kovuta. Mwachitsanzo, SLM yochokera ku liquid crystal kapena DMD imatha kusintha momwe kuwala kumayankhira pa pixel iliyonse, kusintha zomwe zili pachithunzi kapena mawonekedwe ake nthawi yeniyeni, kulola owonera kuwona momwe chithunzicho chimakhudzira mbali zitatu kuchokera mbali zosiyanasiyana.

2. Malo osungira deta ya kuwala

Ukadaulo wosungira deta ya kuwala umagwiritsa ntchito mawonekedwe a kuwala okhala ndi ma frequency ambiri komanso mphamvu zambiri kuti alembe ndikulemba zambiri kudzera mu kusintha kwa kuwala kolondola. Ukadaulo uwu umadalira kuwongolera kolondola kwa mafunde a kuwala, kuphatikizapo kusintha kwa amplitude, gawo ndi polarization state, kuti asunge deta pa media monga ma optical disc kapena zinthu zosungiramo holographic. Ma optical modulators, makamaka ma spatial optical modulators, amachita gawo lofunikira kwambiri polola kuti kuwala kukhale kolondola kwambiri pa njira zosungira ndi kuwerenga.

Pa siteji ya kuwala, ma photon ali ngati ovina okongola kwambiri, akuvina mokongola motsatira "nyimbo" ya zinthu monga ma kristalo, ma crystals amadzimadzi ndi ulusi wa kuwala. Amatha kusintha njira, liwiro, komanso kuvala nthawi yomweyo "zovala zamitundu" yosiyanasiyana, kusintha mayendedwe awo ndi kamvekedwe kawo, ndikuwonetsa magwiridwe antchito odabwitsa motsatizana. Kuwongolera kolondola kwa ma photon ndi chinsinsi chamatsenga cha ukadaulo wamakono wamtsogolo, ndikupanga dziko la kuwala lodzaza ndi mwayi wopanda malire.